setup-util-jq: 1.7 is now latest, also fix setup-util installing

fallback ecosystems to uninstall

commands/github-download

@@ -61,6 +61,10 @@ function github_download() (
 
 			--[no-]dry
 			    Whether or not to only output the resolved URL and do nothing else.
+
+			QUIRKS:
+			To get the release identifier of a tag that hasn't been promoted to a release:
+			fetch 'https://bevry.me/api/github/repos/jqlang/jq/releases' | jq -r '.[] | {tag_name, id}'
 		EOF
 		if test "$#" -ne 0; then
 			echo-error "$@"

commands/setup-util

@@ -3361,15 +3361,14 @@ function setup_util() (
 			fi
 		done
 		# fallback for failed packages which are missing their package system
-		if test "$fallback" = 'yes'; then
-			if test "${#fallbacks[@]}" -ne 0; then
-				for installer in "${fallbacks[@]}"; do
-					run_installer "$installer" "do_${installer}_fallback"
-					if test "$had_break" = 'yes'; then
-						break
-					fi
-				done
-			fi
+		# don't fallback if uninstall though (as the package won't be installed in an ecosystem that is not installed)
+		if test "$fallback" = 'yes' -a "$action" != 'uninstall' -a "${#fallbacks[@]}" -ne 0; then
+			for installer in "${fallbacks[@]}"; do
+				run_installer "$installer" "do_${installer}_fallback"
+				if test "$had_break" = 'yes'; then
+					break
+				fi
+			done
 		fi
 	}
 	run_installers

commands/setup-util-jq

@@ -61,14 +61,10 @@ function setup_util_jq() (
 		ZYPPER='jq' # SUSE
 	)
 	function get_github_asset_url {
-		# use 'jq-1.7rc2' release, as it supports more targets than 1.6, change back to [latest] when 1.7 is released
-		# use release identifier instead of tag name, as we need jq to use tag name
-		# fetch the release identifier via:
-		# fetch "https://bevry.me/api/github/repos/jqlang/jq/releases" | jq -r ".[] | {tag_name, id}"
 		github-download \
 			--dry \
 			--slug='jqlang/jq' \
-			--release='118848514' \
+			--release='latest' \
 			--asset-filter="$(echo-escape-regex "$1")$" | echo-first-line || :
 	}
 	function add_download_option {